“The most important question a person can ask is, "Is the Universe a friendly place?”

“The most important decision we make is whether we believe we live in a friendly or hostile universe.”

“When Albert Einstein was asked what he would really like to know about the Universe he replied,'is it friendly?”

“How can cosmic religious feeling be communicated from one person to another, if it can give rise to no definite notion of a God and no theology? In my view, it is the most important function of art and science to awaken this feeling and keep it alive in those who are receptive to it.”

“The important thing is never to stop questioning.”

“The important thing is not to stop questioning. Curiosity has its own reason for existing.”

“I asked myself childish questions and proceeded to answer them.”